Trussed side frame.



1. A. LAI/mm.

TRUSSED SIDE FRAME.

APPLICATION FILED AUG28I i915.

Patented Dea. 28, 191.5.

s, legni-o1 ci en, isniisois, .es n. if., enne 's lai-Ansi. im.)

ses nos* esili -il im Speccaiien ci? Inlet-ers Essent.

Application filed. August B, isili. Serial le. MGG.

o @ZZ whom t may concern:

Be. it known that L JOHN A. LAMONT, s ciizen of tbe United States, residing ei- Chicago, in the county of Cool: and Siete eff l'liinois, lieve invented certain new and iis ful improvements in Trussed Side Frames, of which the following is e specification.

Ii'iy invention relates to Car trucks and has particular reference to e noveirsicle freine for use in connection tberewi'tli.

A desirable result in the construction of csr iruclrs is 'to provide sice frame which shall combine elle requisites of 'vertical anni lateral resistance with light Weight and economy in cost of prociucsion. aware time many 'forms of buii'thnp sicle frames bn ve been suggested, biliJ she preseni'I form is believed to be or" velue iifribzit is permits the use of commercigi slpes in their bes?J form for securing maximum strength. in tbe frame shown i have provided for e compression member oi" rolled shape and. of angular form; a channel is preferably useci.

'This shape provides for maximum resisto bending stresses such es occur in compression. For the tension member i nsiiize :i pair of round rods bent to the required shape. These rods give the best re.- suls under tensile stresses e'nci are, course, very cbeeply produced. v

. The invention will be more resdiiy unrier steed by reference o sie accompanying drawings, wherein- Figure i is s side eleva-sion of :i side frame constructed in accordance with my inven--.

tion; Fig. 2 is e, bottom pien View thereof; Fig. 3 is e section on the iine 3---3 of Fig. l; and Fig. fi is e section ou the line 4in-fi oi' sig. i. l

'Referring more particularly to the drew ings is will be seen that the side freine includes e compression member 10 ci rolled channel shape, and s ensionmember coinposed of e pair of round rods lLiheends of which are ihreerled' and :accommodate nuts 12. The columns i3 in "the 'form of e oasting to tbe upper member of which ldie compression member is s cured by means of lie rivets ii snel in tbe lower curved portion of which :ire provided grooves forming which accommodates the tension rocls il. is s nie-ens for seeureiy 'iiolciing 'i'siic rods i provide a. clamping member i5 which grasps the rods smi which member is riveiefi to the eoiuinn caseing.

Ae the ends of the frame provicie ossia-- ing which csrriespedes-ei jews 16 enci is provided with e scsi: 17, and s recess 18 for the accommodation of the end of une channel compression member 10. The channei. is riveted 'to the cashing asbess shown in Fig. l. Diagonal apertures ere prei/ideal in tbe casting for the accommode-ion oi the ends oi' the round roriension :members 11,. It Wil'be understood sluit Wb'lie beve shown the end castings es incliiciinc pefieszel jaws the conssruction msy be veriefi by eliminating the jews and providinggz Het surface for resting on s journal box, or

may cest the journal box integrsi with casting.

in constructing the side frame., Clie ceiurnn vcasting; and the tension members :ire first united, then the end essi-ings are ebrea-Ciraci on. to lle tension rods and the eompression member iistcd into alie end castings, whereupon she compression member is rivei-e-el se? curely fno the'colunm anni enfi castings.

The shape and disposition oi may be modified somewhat without departing from the spirit of my invention, und do nos, therefore, Wish ilo be iiinibecl. to the ei;- ee; forni shown and described.

i claim:

i. in e side frame, the combination of en. angular compression member, end castings, e coi'umn member, 'she lower erige oi 'which is curved and shaped to provide s saddle, e plurelisy of tension mais sensed in seid end castings and occupying the saddle in said column member, and s separate clamp `ing member embracing seid rod and rivetee.

to said column member, substantially es scribed.

2. lin e, sie frame, the oombinsaion en angular compression member, enci castings, a piurality of tension rods, s pair oi' struts separating' said. compression smi tension members :incl providing e space between lie struts for 1the sccommodasion of a bolster, *elle lower ends of the Wo struts being uniecl, the iower face of the uniting member being curved and recessed to provide seats for said tension rods, substantially as described.

3. In a sid-e. frame, the combination ofI an angular compression member, end oestingsi a pau: of intermediate struts spaced 'y apart to provide a bolster opening, the' .lower portion of which opening' is larger than bhe upper portion thereof, and a plurality olf' 10 tension rocls seated at their ends in the said memes/5 

